Why Do We Get Cramps at Night?
Those sudden, painful leg cramps that wake you from sleep are called nocturnal leg cramps. They most often affect the calf, foot, or thigh and can last from a few seconds to several minutes.
The exact reason they happen isn’t and hamstring stretching, staying adequately hydrated, and avoiding always known, but several factors can make them more likely:
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Muscle fatigue or overuse during the day
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Prolonged sitting or standing
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Keeping the leg in one position for a long time while sleeping
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Dehydration
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Pregnancy or increasing age
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Certain medications, including some diuretics
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Less commonly, problems involving nerves, circulation, or metabolism
What can you do when a cramp strikes?
Gently straighten the leg and pull your toes toward you, particularly for a calf cramp. Massage the muscle and, once it relaxes, walk around gently.
Regular calf and hamstring stretching, staying adequately hydrated, and avoiding sudden increases in strenuous exercise may also help reduce episodes.
One common misconception is that every nighttime cramp is caused by low magnesium. Magnesium deficiency can cause muscle problems, but routine magnesium supplementation isn’t necessarily helpful for everyone with ordinary nighttime leg cramps.
If cramps are frequent, worsening, unusually severe, or accompanied by swelling, weakness, numbness, or skin-color changes, speak with a healthcare professional.
